external/libpng/StaticLibrary_libpng.mk

   1 # -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
   2 #
   3 # This file is part of the LibreOffice project.
   4 #
   5 # This Source Code Form is subject to the terms of the Mozilla Public
   6 # License, v. 2.0. If a copy of the MPL was not distributed with this
   7 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8 #
   9
  10 $(eval $(call gb_StaticLibrary_StaticLibrary,libpng))
  11
  12 $(eval $(call gb_StaticLibrary_set_warnings_disabled,libpng))
  13
  14 $(eval $(call gb_StaticLibrary_use_unpacked,libpng,libpng))
  15
  16 $(eval $(call gb_StaticLibrary_use_externals,libpng,\
  17         zlib \
  18 ))
  19
  20 $(eval $(call gb_StaticLibrary_add_generated_cobjects,libpng,\
  21         UnpackedTarball/libpng/png \
  22         UnpackedTarball/libpng/pngerror \
  23         UnpackedTarball/libpng/pngget \
  24         UnpackedTarball/libpng/pngmem \
  25         UnpackedTarball/libpng/pngpread \
  26         UnpackedTarball/libpng/pngread \
  27         UnpackedTarball/libpng/pngrio \
  28         UnpackedTarball/libpng/pngrtran \
  29         UnpackedTarball/libpng/pngrutil \
  30         UnpackedTarball/libpng/pngset \
  31         UnpackedTarball/libpng/pngtrans \
  32         UnpackedTarball/libpng/pngwio \
  33         UnpackedTarball/libpng/pngwrite \
  34         UnpackedTarball/libpng/pngwtran \
  35         UnpackedTarball/libpng/pngwutil \
  36         $(if $(filter ARM AARCH64 ARM64,$(CPUNAME)),\
  37             UnpackedTarball/libpng/arm/arm_init \
  38             UnpackedTarball/libpng/arm/filter_neon_intrinsics \
  39             UnpackedTarball/libpng/arm/palette_neon_intrinsics \
  40         ) \
  41         $(if $(filter POWERPC POWERPC64,$(CPUNAME)), \
  42             UnpackedTarball/libpng/powerpc/powerpc_init \
  43             UnpackedTarball/libpng/powerpc/filter_vsx_intrinsics \
  44         ) \
  45 ))
  46
  47 # At least on Linux, with --enable-lto, when building both this external/libpng and external/skia,
  48 # and building with GCC but building skia with Clang (which should be the sole combination that
  49 # matches "LO_CLANG_CC is non-empty"), build this as a fat archive (including both the intermediate GCC
  50 # object code for LTO and machine object code).  Besides targets like Library_vcl (which benefit
  51 # from the  intermediate GCC object code for LTO), also Library_skia (built with the Clang toolchain
  52 # lld, which does not understand intermediate GCC object code) includes this, so would otherwise
  53 # fail to link (but now does not benefit from LTO for this included StaticLibrary_libpng):
  54 ifeq ($(OS)-$(ENABLE_LTO),LINUX-TRUE)
  55 ifneq ($(filter SKIA,$(BUILD_TYPE)),)
  56 ifneq ($(LO_CLANG_CC),)
  57 $(eval $(call gb_StaticLibrary_add_cflags,libpng,-ffat-lto-objects))
  58 endif
  59 endif
  60 endif
  61
  62 # vim: set noet sw=4 ts=4: